wifi: rtw89: use frequency domain RSSI

To get more accurate RSSI, this commit includes frequency domain RSSI
info in RSSI calculation. Add correspond physts parsing and macro to
get frequency domain RSSI information for supported IC.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240828055217.10263-3-pkshih@realtek.com